CN101244616A - Decontamination polishing method and decontamination polishing material for plastic machine - Google Patents

Abstract

The invention relates to a decontamination polishing method and a decontamination polishing material of a plastic machine with high cleaning efficiency and less used raw materials, wherein the decontamination polishing material is mainly prepared by using plant fruits or shells or cut plant rootstocks or matching with chemical cleaning materials such as a surfactant, a solvent, a washing assistant and the like in a certain proportion; in particular, since the swelling of the plant fruit produces popcorn effect, the swelling effect is good, and the decontamination polishing effect is also good.

Description

Decontamination polishing method and decontamination polishing material for plastic machine

technical field

The invention relates to a decontamination polishing method and a decontamination polishing material, in particular to a decontamination polishing method and a decontamination polishing material for injection molding machines, blow molding machines, extrusion molding machines and other plastic machines.

Background technique

Existing plastic processing machinery - such as blow molding, extrusion molding machines and injection molding machines, etc., before changing the color of the product produced, the barrel in the plastic processing machine or the screw in the barrel must be cleaned to avoid To prevent the color of the product to be produced from being affected by the residual plastic of different colors from the previous batch in the barrel; the cleaning method is to put a large amount of raw materials of the product to be produced into the barrel and heat it, and continuously remove the residue in the barrel The residual material in the barrel or screw is injected or discharged (the principle is to dilute the color pigment in the barrel or screw) until the color of the injected or discharged plastic is the same as the color of the product to be produced; this plastic processing machinery The barrel cleaning method not only wastes raw materials, but also wastes electricity and time; and when the injection molding machine or extruder is used for a period of time, it will accumulate on the wall of the barrel due to carbonization of the plastic in the barrel, which will affect the use, so in general , the injection molding machine or extruder needs to be cleaned every once in a while. The cleaning method is to remove the screw and use tools to chisel out the carbonized plastic from the cylinder wall. The disadvantage is that the workload is large, the cleaning efficiency is low, and Easy to damage the screw or barrel.

Contents of the invention

The purpose of the present invention is to solve the problems of wasting raw materials and electric energy, low cleaning efficiency and unsatisfactory cleaning effect in the barrel cleaning of existing plastic processing machines, and to provide a plastic machine with high cleaning efficiency and less raw materials Decontamination polishing method and decontamination polishing material.

The object of the present invention is achieved like this: a kind of decontamination polishing method of plastic machine, it is characterized in that barrel is heated earlier, then in the barrel of plastic machine, be sent into plant class fruit or be sent into plant class husk or send Enter the cut plant rhizomes, make the screw of the plastic machine rotate and discharge materials outward, use the plant fruits or plant shells or plant rhizomes to expand and move in the barrel to carry out the inner wall of the barrel and the surface of the screw. Polishing and cleaning, because plant fruits or rhizomes expand when heated—equivalent to automatic pressurization, so the pressure in the barrel can be increased, thereby improving the effect of cleaning and polishing; especially plant fruits, because their expansion will cause explosion. The effect of rice flower is good, and the expansion effect is good, so its decontamination and polishing effect is also good.

The decontamination and polishing method of the plastic machine is characterized in that the nozzle or die head of the barrel is removed before the screw is rotated. For injection molding machines, the nozzle is removed, while for blow molding and extrusion molding machines, the mold head for molding is removed to prevent plant fruits or rhizomes from being blocked when they are discharged.

The decontamination and polishing method for a plastic machine is characterized in that the plant fruit is paddy or rice or sorghum or beans or barley or wheat or corn or barley.

The decontamination and polishing method for a plastic machine is characterized in that the plant rhizome is a rice rhizome or a high grain rhizome or a bean rhizome or a wheat rhizome or a corn rhizome or a barley rhizome.

The decontamination and polishing method for a plastic machine is characterized in that the plant fruit or plant rhizome is mixed with a solvent or a surfactant or a cleaning aid or plastic raw material granules. Plastic raw material pellets are plastic raw materials used in injection molding machines or extruders, such as PP, PVC, POM, PE, PET and other plastic pellets, whose function is to use the viscosity of the plastic to take out dirt.

The decontamination and polishing method for a plastic machine is characterized in that the solvent is ethanol or isopropanol or mixed propanol or mixed butanol or n-butanol or methanol or isobutanol or monobutyl ether. Wherein monobutyl ether can be ethylene glycol monobutyl ether.

The decontamination and polishing method of the plastic machine is characterized in that the surfactant is fatty alcohol or alkylphenol polyoxyethylene ether or octylphenol polyoxyethylene ether or nonylphenol polyoxyethylene ether; such as TX -10, OP--10, etc.

The decontamination and polishing method for plastic machines is characterized in that the detergent aid is 6501 or 6502 or 6503 or 6504 or 6506 or 105 or phosphoric acid. The above numbers are material names, such as 6501 refers to coconut oil alkanolamide.

A decontamination polishing material for a plastic machine is characterized in that it is made by mixing the following raw materials:

a. Vegetable fruit or plant husk or cut plant rhizome;

b. Solvents or surfactants or detergent aids or plastic raw material granules.

Plastic raw material pellets are plastic raw materials used in injection molding machines or extruders, such as PP, PVC, POM, PE, PET and other plastic pellets, whose function is to use the viscosity of the plastic to take out dirt.

The decontamination polishing compound for plastic machines is characterized in that the weight parts of the raw materials are: 20-70 parts of plant fruits or plant husks or cut plant roots; 0.3-5 parts of solvent; 5-5 parts of surfactants. 26.

The decontamination polishing compound for a plastic machine is characterized in that the raw material also includes 5-26 parts by weight of a cleaning aid.

The decontamination polishing material for the plastic machine is characterized in that the detergent aid is 6501 or 6502 or 6503 or 6504 or 6506 or 105 or phosphoric acid. The above numbers are material names, such as 6501 refers to coconut oil alkanolamide.

The decontamination polishing compound for plastic machines is characterized in that the raw materials also include 10-45 parts by weight of plastic raw material granules.

The decontamination polishing compound for a plastic machine is characterized in that the plant fruit is paddy or rice or high grain or beans or barley or wheat or corn or barley.

The decontamination polishing compound for plastic machines is characterized in that the plant rhizome is the rhizome of rice or the rhizome of sorghum or the rhizome of beans or the rhizome of wheat or the rhizome of corn or the rhizome of barley.

The decontamination polishing compound for plastic machines is characterized in that the solvent is ethanol or isopropanol or mixed propanol or mixed butanol or n-butanol or methanol or isobutanol or monobutyl ether. Wherein monobutyl ether can be ethylene glycol monobutyl ether.

The decontamination polishing material for the plastic machine is characterized in that the surfactant is fatty alcohols or alkylphenol polyoxyethylene ethers or octylphenol polyoxyethylene ethers or nonylphenol polyoxyethylene ethers; such as T X-10, OP--10, etc.

Due to the adoption of the technical scheme of the present invention, plant fruits or cut plant roots are used to add decontamination chemical materials to clean the barrel, and the plant fruits or cut plant roots are heated and expanded in the barrel. It flows through the surface of the barrel and the screw together with the decontamination chemical material to polish and clean it, because the plant fruit or shell or the cut plant rhizome automatically expands when heated, which increases the pressure in the barrel and greatly increases the pressure in the barrel. Improved cleaning effect—especially for blow molding and extrusion molding machines, the effect is more obvious. Compared with the barrel cleaning method of existing plastic processing machinery, the technical solution of the present invention uses less plastic raw materials. It saves materials, saves electricity bills, and greatly reduces cleaning costs.

Detailed ways:

Embodiment 1 is a decontamination polishing material for PP injection molding machines. The parts by weight of the raw materials are as follows: 50 parts of ethylene glycol monobutyl ether is used as a solvent, and 10 parts of TX--10 is used as a surface active compound. agent, 5 parts of phosphoric acid as a detergent aid, and 20 parts of PP plastic raw materials.

When making, use a mixing mixer, add 20 parts of PP plastic raw material granules, 50 parts of grain, and 10 parts of TX--10 into the mixing mixer, keep stirring slowly in the greenhouse for about 30 minutes until it is uniform, and then add 5 parts of phosphoric acid , Stir slowly at room temperature for about 20 minutes, then add 2 parts of ethylene glycol monobutyl ether, and stir slowly at room temperature for about 20 minutes.

When cleaning, first turn on the power of the injection molding machine, heat the barrel until the old material in the barrel is in a molten state, then remove the nozzle at the front end of the barrel, and add the decontamination and polishing agent prepared above into the barrel. material, start the oil motor that controls the screw to rotate the screw to bring the decontamination polishing material into the barrel until the decontamination polishing material is pushed out through the front end of the barrel, during which the grains in the decontamination polishing material are heated and expand in the barrel and even occur The popping effect increases the pressure in the barrel, and at the same time, under the push of the screw, it continuously contacts the inner wall of the screw and the barrel to polish the screw and the inner wall of the barrel, while other chemical products decontaminate the barrel. In PP Driven by the plastic material, the dirt in the barrel is taken out together.

Of course, the decontamination polishing compound in Example 1 can also be used in blow molding or extrusion molding machines. When using it, it is best to first remove the mold head on the molding machine, and then only need to use the same process as cleaning the barrel of the injection molding machine. Can.

Embodiment 2 is a kind of decontamination polishing material for PE injection molding machine, and the parts by weight of its raw materials are as follows: 40 parts of rice are used, 2 parts of ethylene glycol monobutyl ether are used as solvent, and 20 parts of OP--10 are used as surface active agent, 3 parts of 6501 as a washing aid, and 30 parts of PE plastic raw materials.

When making, use a stirring mixer, add 30 parts of PE plastic raw material granules, 40 parts of rice, and 20 parts of OP--10 into the mixing mixer, keep stirring slowly in the greenhouse for about 30 minutes until it is uniform, and then add 3 parts of 6501 , Stir slowly at room temperature for about 20 minutes, then add 2 parts of ethylene glycol monobutyl ether, and stir slowly at room temperature for about 20 minutes.

Its method of use is the same as that of Example 1.

Embodiment 3 is a kind of decontamination polishing material for PVC injection molding machine, and the parts by weight of its raw materials are as follows: 50 parts of corn are used, 2 parts of ethylene glycol monobutyl ether are used as solvent, 4 parts of 6504 are used as washing aid, 40 parts Parts of PVC plastic raw material pellets.

When making, use a mixing mixer, add 40 parts of PVC plastic raw material granules, 50 parts of corn, and 2 parts of ethylene glycol monobutyl ether into the mixing mixer, keep stirring slowly in the greenhouse for about 30 minutes until it is uniform, and then add 4 Part 6504, stirred slowly at room temperature for about 20 minutes, then added 2 parts of ethylene glycol monobutyl ether, and stirred slowly at room temperature for about 20 minutes.

Its method of use is the same as that of Example 1.

In conjunction with the present invention, on the basis of the above-described embodiments, ordinary skilled persons can dispense various decontamination and polishing materials for injection molding machines that are similar to each other, so no more details are given here.

Claims (17)

1. the scrubbing finishing method of a plastics machine, it is characterized in that earlier barrel being heated, in the barrel of plastics machine, send into plant class fruit then or send into plant class shell or send into plant class rhizome through cutting, the screw rod that makes the plastics machine rotates and outside discharge, utilize plant class fruit or plant class shell or plant class rhizome expanded by heating and in barrel moving process material tube inner wall and screw surface are carried out polished and cleaned.

2. according to the scrubbing finishing method of the described plastics machine of claim 1, it is characterized in that before screw rod is rotated, pulling down the nozzle or the mould head of barrel.

3. according to the scrubbing finishing method of the described plastics machine of claim 1, it is characterized in that described plant class fruit is paddy or rice or high grain or beans or barley or wheat or corn or buckwheat.

4. according to the scrubbing finishing method of the described plastics machine of claim 1, it is characterized in that the rhizome that described plant class rhizome is a paddy rice or rhizome or the rhizome of beans or rhizome or the rhizome of corn or the rhizome of buckwheat of wheat class of high grain.

5. according to the scrubbing finishing method of the described plastics machine of claim 1, it is characterized in that described plant class fruit or plant class rhizome are mixed with solvent or surfactant or washing assisant or plastic raw materials grain.

6. according to the scrubbing finishing method of the described plastics machine of claim 5, it is characterized in that described solvent is ethanol or isopropyl alcohol or mixed propyl alcohol or mixed butanols or n-butanol or methyl alcohol or isobutanol or monobutyl ether.

7. according to the scrubbing finishing method of the described plastics machine of claim 5, it is characterized in that described surfactant is aliphatic alcohols or or APES or OPEO or NPE.

8. according to the scrubbing finishing method of the described plastics machine of claim 5, it is characterized in that described washing assisant is 6501 or 6502 or 6503 or 6504 or 6506 or 105 or phosphoric acid.

9. the scrubbing polishing material of a plastics machine is characterized in that being mixed by following raw material: a, plant class fruit or plant class shell or through the plant class rhizome of cutting; B, solvent or surfactant or washing assisant or plastic raw materials grain.

10. according to the scrubbing polishing material of the described plastics machine of claim 9, it is characterized in that the weight portion of described raw material is: plant class fruit or plant class shell or through the plant class rhizome 20～70 of cutting; Solvent 0.3～5; Surfactant 5～26.

11., it is characterized in that described raw material also comprises washing assisant weight portion 5～26 according to the scrubbing polishing material of the described plastics machine of claim 10.

12., it is characterized in that described washing assisant is 6501 or 6502 or 6503 or 6504 or 6506 or 105 or phosphoric acid according to the scrubbing polishing material of claim 9 or 11 described plastics machines.

13., it is characterized in that described raw material also comprises plastic raw materials grain weight portion 10～45 according to the scrubbing polishing material of the described plastics machine of claim 10.

14., it is characterized in that described plant class fruit is paddy or rice or high grain or beans or barley or wheat or corn or buckwheat according to the scrubbing polishing material of claim 9 or 10 described plastics machines.

15., it is characterized in that the rhizome that described plant class rhizome is a paddy rice or rhizome or the rhizome of beans or rhizome or the rhizome of corn or the rhizome of buckwheat of wheat class of high grain according to the scrubbing polishing material of claim 9 or 10 described plastics machines.

16., it is characterized in that described solvent is ethanol or isopropyl alcohol or mixed propyl alcohol or mixed butanols or n-butanol or methyl alcohol or isobutanol or monobutyl ether according to the scrubbing polishing material of claim 9 or 10 described plastics machines.

17., it is characterized in that described surfactant is aliphatic alcohols or or APES or OPEO or NPE according to the scrubbing polishing material of claim 9 or 10 described plastics machines.